Pollution is the introduction into the air, water or ground of toxic substances that are damaging to human health and ecosystems.
The greenhouse effect is the rise in temperature that the Earth experiences because certain gases in the atmosphere trap energy from the sun.
The term 'acid rain' refers to the acidification of rain associated with the combustion of fossil fuel: coal, oil and natural gas
The water that is suitable for drinking is called as potable water.
Harmful effects of air pollution arecystic fibrosis
skin cancer lung cancer
Harmful effects of Acid rain causes
Harmful effects of Ozone.
a) Malignant Melanoma
b) Cortical Cataracts
Question 5How can water be purified?
1. Candle filter is used for water purification
2. Traditional method of water filtration is boiling
3. Chlorination is the chemical method of purification of water
4. through the process of reverse osmosis water can be purified